一种新型简单的基于深共晶溶剂的液相微萃取方法，用于化妆品和水样中罗丹明 B 的分光光度测定前的萃取。
A novel and simple deep eutectic solvent based liquid phase microextraction method for rhodamine B in cosmetic products and water samples prior to its spectrophotometric determination.
机构信息
Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey.
Erciyes University, Faculty of Sciences, Department of Chemistry, 38039 Kayseri, Turkey.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Sep 5;202:81-86. doi: 10.1016/j.saa.2018.04.073. Epub 2018 May 9.
A novel and green deep eutectic solvent based liquid phase microextraction (DES-LPME) methodology has been proposed for the assessment of rhodamine B from cosmetic products and water samples. A deep eutectic solvent (DES) consist of tetrabutyl ammonium chloride-decanoic acid (1:2) as extraction solvent and tetrahydrofuran as emulsification agent were used for the microextraction of rhodamine B. The quantitative recoveries were achieved at pH 3 by using 0.3 mL of DES and 0.3 mL of THF. The rhodamine B concentration in last volume was analyzed by mirco-cuvette UV-VIS spectrophotometer at 550 nm. The limit of detection (LOD), limit of quantification (LOQ), preconcentration factor (PF) and relative standard deviation (RSD %) were found as 2.2 μg L, 7.3 μg L, 25 and 2.3%, respectively. Accuracy and validity of the developed method was verified by addition-recovery studies for water and cosmetic samples.
一种新颖的、基于绿色深共晶溶剂的液相微萃取（DES-LPME）方法已被提出，用于评估化妆品和水样中的罗丹明 B。深共晶溶剂（DES）由氯化四丁基铵-癸酸（1:2）作为萃取溶剂，四氢呋喃作为乳化剂，用于罗丹明 B 的微萃取。在 pH 3 下，使用 0.3 mL 的 DES 和 0.3 mL 的四氢呋喃可以实现定量回收。最后体积中的罗丹明 B 浓度通过微量比色皿紫外可见分光光度计在 550nm 处进行分析。检测限（LOD）、定量限（LOQ）、浓缩因子（PF）和相对标准偏差（RSD%）分别为 2.2μg/L、7.3μg/L、25 和 2.3%。该方法的准确性和有效性通过在水和化妆品样品中的加标回收研究得到了验证。
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